Table of Contents

Foreword<br>Introduction<br>1 Scope<br>2 Normative references<br>3 Terms and definitions<br>4 Symbols<br>5 Principles<br>6 Evaluating uncertainty using repeatability,<br>&nbsp;&nbsp;&nbsp;reproducibility and trueness estimates<br>7 Establishing the relevance of method performance<br>&nbsp;&nbsp;&nbsp;data to measurement results from a particular<br>&nbsp;&nbsp;&nbsp;measurement process<br>8 Establishing relevance to the test item<br>9 Additional factors<br>10 General expression for combined standard<br>&nbsp;&nbsp;&nbsp;uncertainty<br>11 Uncertainty budgets based on collaborative study<br>&nbsp;&nbsp;&nbsp;data<br>12 Evaluation of uncertainty for a combined result<br>13 Expression of uncertainty information<br>14 Comparison of method performance figures and<br>&nbsp;&nbsp;&nbsp;uncertainty data<br>Annex A (informative) - Approaches to uncertainty<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;evaluation<br>Annex B (informative) - Experimental uncertainty<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;evaluation<br>Annex C (informative) - Examples of uncertainty<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;calculations<br>Bibliography

Abstract

Provides guidance for: - evaluation of measurement uncertainties using data obtained from studies conducted in accordance with ISO 5725-2, and - comparison of collaborative study results with measurement uncertainty (MU) obtained using formal principles of uncertainty propagation.

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Published
Document Type	Standard
Status	Current
Publisher	British Standards Institution
Pages
ISBN
Committee	SS/6
Supersedes	DD ISO/TS 21748 : 2004 09/30191982 DC : 0